r+2=9

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Solution for r+2=9 equation: 


Simplifying
r + 2 = 9

Reorder the terms:
2 + r = 9

Solving
2 + r = 9

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + r = 9 + -2

Combine like terms: 2 + -2 = 0
0 + r = 9 + -2
r = 9 + -2

Combine like terms: 9 + -2 = 7
r = 7

Simplifying
r = 7

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